This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: According to Poiseuille's law, which of the following statements is true if we wish to maintain a ... (Read 67 times)

ereecah

  • Hero Member
  • *****
  • Posts: 530
on: Jul 16, 2018
According to Poiseuille's law, which of the following statements is true if we wish to maintain a constant flow of gases?
 
  a. Alveolar recruitment has its greatest effect on flow.
  b. Halving the tube radius will require a 16-time increase in driving pressure.
  c. Large jumps in driving pressure are need-ed to overcome airway narrowing.
  d. The driving pressure varies directly with the airway circumference.

Question 2

What is the term for the impedance to ventilation caused by the movement of gas through the conducting system of the lungs?
 
  a. Airway resistance
  b. Lung compliance
  c. Surface tension
  d. Tissue elastance


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xMRAZ

  • Sr. Member
  • ****
  • Posts: 363
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
For gas flow to remain constant, delivery pressure must vary inversely with the fourth power of the airway's radius. Reducing the radius of a tube by half requires a 16-fold pressure increase to maintain a constant flow. To maintain ventilation in the presence of narrowing airways, large in-creases in driving pressure may be needed. The energy necessary to generate these pressures can markedly increase the work of breathing.

Answer to Question 2

ANS: A


ereecah

  • Member
  • Posts: 530
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

TrUe....FaLsE TrUe....FaLsE
True Friendship True Friendship
Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe
Viscosity, Poiseuille’s Law, and Turbulence Viscosity, Poiseuille’s Law, and Turbulence
E9-23 Prepare income statements Explain the difference in operating income E9-23 Prepare income statements Explain the difference in operating income
Video: Dorsal Recumbent Position

For a complete list of videos, visit our video library